Edwin j



' E. TOOF.

Lamp Burner.

Patented Aug. 11, 1868.

Ina/Z2232 N. PEIERs, PHUTO-UTHOGRAPHER, WASHINGYUN. D C.

iiniteh tetra gimmi- Letters Patent No. 80,843, dated August 11', 186 8.

IMPROVEMENT IN LhMP-BURNERS.

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TO ALL WHOM IT MAY'GONO-ERN:

Be it known that I, EDWIN J. TOOF, of Madison, in Lee county, and Stateof Iowa, have invented certain new and useful Improvements iiiLamp-Burner Attachments; and I do herebydeclare that the following is afull, clear, and exact description thereof, reference being h-adtotheaccompanying drawings, through letters of reference marked thereon,forming part of'this specification, and in which- Figure 1 represents aside elevation of a burner embracing myimprovement. I

Figure 2, a transverse section of the same.

Figure 3, a top view thereof.

F-igure 4,411 inverted view.

Figures 5,6, and 7, detached views of onc'cf the supports of cone andchimney. i

This invention relates to that class of burners in which the cone ordeflector is elevatedabove the air-screen, and sustained in position bysuitable supports, and wherein the chimney passes down over the saidcone and its supports, such as are known in the market as sun," comet/fsoIar,- or diamond burners,the main objection to which is theinconvenience in trimming and lighting, owing to the-cone being rigidlyattached to the air-screen or other part of the burner, and thenecessity for removing-the chimney for such purpose Some attempts havebeen made to remedy this evil, by hingingthe central partof thedeiiector to an annular plate, which is rigidly attached totheai-bscreen, '01 by making the cone and air-screen detachable from theburner; but in all these, whilst they are only a partial remedy, theyinvolve"additional expense in manufacture.

' =The object of my invention is to simplii'y'the construction, renderthe wick-tube perfectly accessible, without detaching eventhechimney-glass; and it consists in'a'novel manner of supporting andconnecting 'thelcone with. the air-screen or other suitable part of theburner; in connecting the cone with and at a proper elevation within thechimney-glass, so that they maybe removable togetheror separately; inthe construction of the hinge-joint, by which the'chiinncy-holder andcone are-connected with the burner; in the arrangement of the sprihg-retaining catch, formed in one piece, with one of the cone andchimney-supports; -iu thepeculiar construction of the supporting-pieces,so as to give both'rigidity 'and' el a sticity where requiredjin soconstructing andappl'ying the chimney-supports that they will adaptthemselves to the variations in size of the chimneys, and, whilst theyact as chimney-supports, they also attach the cone thereto, and retainit in suitable position therein; and in constructing the supports andclamps, forming the chimney and'cone-holders, and also theretaining-catch ofone of them, each in one continuous piece of metal, soas to require riveting only in one place also in the insertion of avalve in the vapor-tube for the moreiperfect prevention of explosion. V

, 'To enable othcrs to makeand use my invention, I will proceed todescribe its construction and operation by referring to the drawings, inwhich-- l p p v A represents the air-screen or distributenwhich may bearflat,concave, or convex disk, or of any other suitable or ornamentalformation,to which are attached the wick-tube B, scr'cu' boss, C, forforming the connection with the bodyof the lamp, the vapor-tube D,'andthe ratchctor spur-wheel, shaft and millhead, common to some such lamps,for raising the wicl in the tube, and within the central boss 'of theair-screen is diaphragm, G, fitting closely around the wick-tube andvapor-tube to cut offany communication between the lighted wick, throughthe aperture into which the'spring a locks, and that portion of thewick-tubcpenetrated by the spur-' wheels, which otherwise might causeexplosion, j i I E'represents the cone or deflector, the use andposition of which are well understood. To this cone, I attach four, moreor less, spring-plates F, which are'fi rst formed out of sheet metal,rolled or otherwise tempered tor give it'elasticity, and of variablewidth or thickness, to give more or less elasticity at different partsof their length, as represented in fig- 7- These spring-platcsare thenbent into. the form represented in fig. 5, and attached, by riveting orotherwise, to the conc E, and one of said spring-plates is extended inlength from its wider end, and somewhat tapering therefrom, so as toform inconnection therewith-the catch-spring a, for the purpose'oflocking the cone in proper position over the burner, by catching into anopening in the elevated central portion ofthe air-screen A, or otherconvenient attachment to the burner.

'Thc air-screen A has also formed ,in it, near its periphery, one ormore indentations b, or, it may be, aperv turos to form the seat orseats of the lower bent ends of the spring-supports F, theseindentations conforming in size and shape to the width and curvature ofthe lowerportion of said spring-supports, and in whichone of them isconnected by passing a wire-therethrouglr and through the loop ofthesupport, or by indenting the end portions of such indentations, orpartially severing such. portions, so as to loeliiinto the loopof thesupport, thus forming a simple and efi'ective hinge-joint. It is onl-ynecessary that theone support, with whieh this hinge-connection is made,should heseated in an indentation in the air-sereen; the others may restupon the flat surface thereof, but, in that. case, they must be madecorrespondingly shorter than the hingcdone, in order that the cone mayset at right angles to the wick-tube. I v I These spring-supports F notonly sustain .the cone, but form a clamp-holder for the chimney-glass, aportion of which is represented in red lines in fig. 2, from which itwill be seen that, as they are only rigidly attached to the cone andfreeat'the lower end, they will readily conform to slight variations inthe diameter of such chimneys. This same effect might. be attained evenif the lowerends of the supports were also rigidly connected to a ring,and that hinged to the air-screen, but 'that construction, in case of asmaller-sized glass being used, would elevate the cone slightly furtherfrom t'hewick-tube than would be the ease with one of larger diameter;for this reason the free support is prei'er'able, asiwell as being lessexpensive to manufacture.

The hinged connection of the support being formed within the periphery,or the outer extremity of the air- 7 screen A, or any attachmentthereto, when the chimney is turned aside, to trim or light the lamp,the outer or clamping-spring portion strikes and rests uponsuehj'outerportion of said screen, which causes the chimney to i hegriped'wvith greater firmness, when in a position most liable tobecomedetaehed, and is thus held so securely that any ordinary shakingwould not separate it from the holder.

In order to guard against-explosions, which arise most frequently fromthe sudden change of temperature "to which the'bo'dy of the lampissubjected, as in passing from a warm into a cold atmosphere, whereby apartial vacuum is caused insueh vessel, the effect of which is to drawtheflame 'of the burner down the vapor-tube by its side, and thus-igniteits contents I insert a check-valve, e, with vaportubeD,openingupwardly, so that any pressure of the expanding vapor within saidvessel may havefree escape; but the moment that pressure ceases, orapartialvaeuum is caused, the valve will close and cutoflallcommunication betweep theflame and the contents of the body of thelamp, and thus prevent'thepossibility-of explosion from such cause.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The springs F, which are so constructed as not only'to actas asupporttotheel evated cone E, but, at the same time, to serve to clamp thechimney, whether the same be hinged to or have spring-snap connectionwith theforaminoiis air-sereen A, substantially as herein shown anddescribed. v

- 2. The hinge=joint, formed by the'bend of thespring -support F,.inconnection with an aperture or depression in the disk A, or anyattachment thereto, substantially as shown and described.

3. The spring-catch a, formed .by the extension of the spring-support.F, and arranged in relation to the cone E, and locking into thecentral'elevated portion of the air-screen, or other conirenientattachment to the burner, substantially asshown'and described.

4. The spring-clamps F, constructed with variable widths or thicknesses,for the distribution of the spring and holding-parts,substantially asset forth.

' 5/ The clamps'F, constructed of onecon'tinuous strip of metal, andserving to support the cone within the chimney, and .tosupport andconnect both with the foraminous screen, substantially as described. 7

6. The application of the valvee to the vapor-tube ofalampdmlner,substantially as and foi the purposeset forth. I EDWIN J.T0015.

Witnesses:

SYDNEY E; SMITH, Wl Mourns SMITH.

